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Recognised as Colour

#3680CC

  • #3680CC
  • Blue
  • Dark
  • Nearest: Cornflower blue

#3680CC is a blue with RGB values 54, 128, 204 and HSL 210°, 60%, 51%. It is a dark colour, so black text on it reaches 5.1:1 contrast (AA for normal text). The nearest named colour is Cornflower blue.

Colour values

#3680CC#3680CC
HEX#3680CC
RGBrgb(54, 128, 204)
RGB (0–1)0.2118, 0.502, 0.8
RGB percentages21.2%, 50.2%, 80%
HSLhsl(210.4, 59.5%, 50.6%)
HSV / HSBhsv(210.4, 73.5%, 80%)
CMYK73.5%, 37.3%, 0%, 20%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer3,571,916
CSS custom property--colour: #3680CC;

Brightness & contrast

Relative luminance0.20582WCAG 2.x, 0 is black and 1 is white
Perceived brightness123.4 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 5.12:1
Contrast with white4.1:1WCAG normal text: Fail
Contrast with black5.12:1WCAG normal text: AA
Greyscale equivalent#767676
Inverted#C97F33

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#5D85CFno red cones; affects about 1% of men; ΔE 6.8 from the original
Deuteranopia#4677CAno green cones; the most common form, about 1% of men; ΔE 7.8 from the original
Tritanopia#00929Cno blue cones; rare, and affects men and women equally; ΔE 44.4 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text4.1:1WCAG large text: AA
Contrast with black, large text5.12:1WCAG large text: AAA

Named colours

Cornflower blue · ΔE 11.9Steel blue · ΔE 15.4Dodgerblue · ΔE 20.1Deep skyblue · ΔE 28.9Royal blue · ΔE 30.7Dark slateblue · ΔE 32
Nearest named CSS colourCornflower blue (#6495ED)ΔE 11.93, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#CC8236
Analogous#36CBCC, #3736CC
Triadic#CC3680, #80CC36
Split complementary#CC3736, #CBCC36
Tetradic#CC36CB, #CC8236, #36CC37

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#D9E7F5
Lighter +30%#B0CDEB
Lighter +20%#87B3E1
Lighter +10%#5F9AD6
Darker −10%#2A67A5
Darker −20%#204D7C
Darker −30%#153454
Darker −40%#0B1B2B
More saturated +25%#1680EC
Less saturated −25%#5680AD

Channel breakdown

R54
G128
B204
Red54 (21.2%)
Green128 (50.2%)
Blue204 (80%)
Hue210.4°
Saturation (HSL)59.52%
Lightness50.59%
Dominant channelBlue
Hex per channelR 36 · G 80 · B CC

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Every value on this page was computed from “3680cc” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.